EP1621391B1 - Seat slide device - Google Patents
Seat slide device Download PDFInfo
- Publication number
- EP1621391B1 EP1621391B1 EP05015842A EP05015842A EP1621391B1 EP 1621391 B1 EP1621391 B1 EP 1621391B1 EP 05015842 A EP05015842 A EP 05015842A EP 05015842 A EP05015842 A EP 05015842A EP 1621391 B1 EP1621391 B1 EP 1621391B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock plate
- upper rail
- sub
- rail
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0881—Activation of the latches by the control mechanism
- B60N2/0893—Activation of the latches by the control mechanism allowing independent movement of the latches, e.g. to recover tolerance errors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0702—Slide construction characterised by its cross-section
- B60N2/0715—C or U-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0812—Location of the latch
- B60N2/0825—Location of the latch outside the rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0831—Movement of the latch
- B60N2/0837—Movement of the latch pivoting
- B60N2/0843—Movement of the latch pivoting about a longitudinal axis
Definitions
- the seat slide device includes a lock and unlock mechanism for locking (engaging) and unlocking (disengaging) the upper rail, to which the seat is fixed, relative to the lower rail.
- the lock and unlock mechanism includes a main lock plate, which is comprised of a hook portion and a main body.
- the hook portion is normally biased by means of a spring so as to engage with a lock hole formed on the lower rail, and the main body is moved by means of an operation handle in an unlocked direction against the biasing force from the spring.
- the hook portion is integrally formed on the main body at a lower end portion thereof, and the operation handle is provided so as to press down an upper end portion of the main body.
- US-A-4 526 424 which shows the features of the preamble of claim 1 discloses a seat slide device comprising : a lower rail fixed to a vehicle floor, an upper rail supporting a seat; and a lock and unlock mechanism for supporting the upper rail so as to be slidable on the lower rail; wherein an engaging hole is formed on the lower rail; and a claw portion is formed on a lock plate, which is rotatably supported by a first bracket fixed to the upper rail, so as to contact to an upper surface of the engaging hole in order to press down the upper rail.
- JP10-100752A discloses a seat slide in which a pair of wedge stoppers is inserted between the upper portion of the lower rail and the bearing while the upper rail is locked with the lower rail so that the rattling of the upper rail against the lower rail is reduced.
- the seat slide device needs to be configured accurately, and the stoppers need to be operated precisely. This makes the device unpractical.
- the rattling of the upper rail against the lower rail can be reduced by means of the sub lock plate by it self.
- the sub lock plate can be rotated in conjunction with the rotation of the main lock plate, both the main lock plate and the sub lock plate can be rotated by applying the force to either one of the main lock plate or the sub lock plate.
- the upper rail can be unlocked from the lower rail without any difficulty.
- each of the flange portions 5 is formed so as to extend inward from an upper end of each of the vertical wall portions 4c.
- the flange portions 5 further extend downward in a vertical direction so as to form vertical portions 8.
- the upper rail 3 includes a main body portion 6 and mounting portions 7.
- the main body portion 6 is formed in an upside-down U-shape so as to includes two vertical walls, and each of the vertical walls extends outward from each of the lower ends of the vertical walls, and then further extends upward so as to form the U-shaped mounting portion 7.
- each of the vertical portions 8 of the flange portions 5 is positioned within each of the mounting portions 7.
- a pair of bearings 9 is attached to the mounting portions 7 of the upper rail 3.
- Each of the bearings 9 is positioned so as to rotate on each of the second bottom portions 4b of the main body portion 4, and in this circumstance, a space is provided between a top end of each of the bearing 9 and an inner surface of each of the flange portions 5.
- a pair of shoes 10 is fixed to the upper rail at the mounting portions 7 so as to slide on the inner surface of the flange portion 5 and the inner surface of the vertical wall portion 4c in order to smooth the slide of the upper rail 3 on the lower rail 3.
- the main lock plate 11 includes a main body 13, a protruding portion 21, an operating portion 14, hook portions 15 and mounting portions 16.
- the operating portion 14 is provided at the upper portion of the main body 13
- the mounting portions 16 are also provided at the upper portion of the main body 13 so as to sandwich the operating portion 14, and the hook portions 15 are provided at the lower portion of the main body 13.
- the main lock plate 11 and the sub lock plate 12 are connected together in a manner where the protruding portion 21 of the main lock plate 11 overlaps the main body 17 of the sub lock plate 12.
- the main lock plate 11 rotates in an anticlockwise direction relative to a pin hole of the mounting portion 16 so as to be unlocked.
- the sub lock plate 12 is also rotated by means of the protruding portion 21.
- the main lock plate 11 is rotatably supported by the upper rail 3 in a manner where the mounting portions 16 of the main lock plate 11 is attached to brackets 23 of the upper rail 3 by means of pins 22.
- the hook portion 15 is positioned so as to be able to insert into lock holes (engaging holes) 24, which are formed on the vertical portion 8 of the lower rail 2.
- the main lock plate 11 is normally biased by means of the spring 11a in an anticlockwise direction in Fig.4 so that the hook portions 15 engage with the lock holes 24, and thus the upper rail 3 can be locked with the lower rail 2.
- the mounting portion 20 of the sub lock plate 12 is rotatably supported by mount brackets 26 of the upper rail 3 by means of pins 25.
- a height of the main body 13 of the main lock plate 11 is approximately identical with a height of the main body 17 of the sub lock plate 12.
- each of the hook portions 15 includes a vertical portion 15a and a protruding portion 15b.
- the vertical portion 15a extends in a downward direction from a lower end of the main body 13, and, when the upper rail 3 mounted to the lower rail 2 is locked, the protruding portion 15b extends toward the lock holes 24 from a lower end of the vertical portion 15a.
- the claw portion 19 doesn't include a vertical portion, which corresponds to the vertical portion 15a of the hook portion 15, and includes a protruding portion 19a that extends toward the lock hole 24 from a lower end of the main body 17.
- the protruding portions 15b of the hook portions 15, which face the upper surface of the lock holes 24, are positioned lower than the position of the protruding portion 19a.
- the sub lock plate 12 can be unlocked by operating the operation handle (not shown) in order to apply the operation force (F) to the operating portion 18, or by rotating the sub lock plate 12 against the biasing force of the spring by means of the protruding portion 21 of the main lock plate 11, which is operated by the operation force applied by the operating portion 14.
- Fig.7 illustrates another example of the seat slide device, in which the sub lock plate 12 includes a protruding portion 21', and the main body 13 of the main lock plate 11 overlaps the protruding portion 21'.
- the sub lock plate 12 is rotatably supported by a mount bracket 28, and the mount bracket 28 is fixed to the bracket 26 of the upper rail 26.
- the mount brackets 27 and the mount bracket 28 commonly use a part of mounting bolts, which are used for mounting these brackets to the bracket 23 and the bracket 26.
- the sub lock plate 12 can be rotated in an unlocked direction in conjunction with the rotation of the main lock plate 11. Specifically, when a force is applied to the operating portion 14 of the main lock plate 11, the force is further transmitted to the sub lock plate 12 by means of the protruding portion 21'. Thus, the sub lock plate 12 can be unlocked by means of the operating portion 14 of the main lock plate 11.
- the main lock plate is biased in a first direction by means of a first spring
- the sub lock plate is also biased in the first direction by means of a second spring.
- the rattling of the upper rail against the lower rail can be reduced by means of the sub lock plate by it self.
- the sub lock plate can be rotated in conjunction with the rotation of the main lock plate, both the main lock plate and the sub lock plate can be rotated by applying the force to either one of the main lock plate or the sub lock plate.
- the upper rail can be unlocked from the lower rail without any difficulty.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Description
- This invention relates to a seat slide device by which a rattling of an upper rail against a lower rail can be reduced.
- A known seat slide device includes a lower rail fixed on a vehicle floor and an upper rail positioned so as to be slidable on the lower rail. In this configuration, a seat is fixed on the upper rail.
- In order to smooth the movement of the upper rail sliding on the lower rail, a bearing is provided between the upper rail and the lower rail. Specifically, the bearing is supported by the upper rail so as to rotate on the lower rail.
- Further, the seat slide device includes a lock and unlock mechanism for locking (engaging) and unlocking (disengaging) the upper rail, to which the seat is fixed, relative to the lower rail.
- Specifically, the lock and unlock mechanism includes a main lock plate, which is comprised of a hook portion and a main body.
- More specifically, the hook portion is normally biased by means of a spring so as to engage with a lock hole formed on the lower rail, and the main body is moved by means of an operation handle in an unlocked direction against the biasing force from the spring.
- The hook portion is integrally formed on the main body at a lower end portion thereof, and the operation handle is provided so as to press down an upper end portion of the main body.
- In such configuration, a pair of bearing is supported by the upper rail so as to slide on a bottom portion of the U-shaped lower rail, and a space is provided between an upper portion of the lower rail and each of the bearings. This space may cause a rattling, especially vibrations of the upper rail against the lower rail in a vertical direction.
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US-A-4 526 424 which shows the features of the preamble of claim 1 discloses a seat slide device comprising : a lower rail fixed to a vehicle floor, an upper rail supporting a seat; and a lock and unlock mechanism for supporting the upper rail so as to be slidable on the lower rail; wherein an engaging hole is formed on the lower rail; and a claw portion is formed on a lock plate, which is rotatably supported by a first bracket fixed to the upper rail, so as to contact to an upper surface of the engaging hole in order to press down the upper rail. -
JP10-100752A - However, in order to insert two stoppers around the bearings provided both sides of the lower rail at the same time, the seat slide device needs to be configured accurately, and the stoppers need to be operated precisely. This makes the device unpractical. Thus, a need exist for the seat slide device to reduce the rattling of the upper rail against the lower rail in practical ways.
- According to the present invention, a seat slide device (1) comprises a lower rail (2) adapted to be fixed to a vehicle floor; an upper rail (3) for supporting a seat; a plurality of spaced holes (24) formed along the lower rail (2); a lock and unlock mechanism (100) for allowing the upper rail (3) to slide on the lower rail (2), characterized in that the lock and unlock mechanism (100) includes a main lock plate (11), which is rotatably supported by a first bracket (23) fixed to the upper rail (3), and a sub lock plate (12), which is rotatably supported by a second bracket (26) fixed to the upper rail (3), the main lock plate (11) having a hook portion (15) and the sub lock plate (12) having a claw portion (19), the main lock plate (11) being urged by a first spring (11a) for causing the hook portion (15) to engage with one of the holes (24), the sub lock plate (12) being urged by a second spring (12a) for causing the claw portion (9) to contact with an upper surface of an engaging hole (24) in order to press down the upper rail (3), the main lock plate (11) and the sub lock plate (12) being connected together in a manner where the main lock plate overlaps the sub lock plate (12) such that when the main lock plate (11) rotates to be unlocked, the sub lock plate (12) is also rotated.
- Thus, the rattling of the upper rail against the lower rail can be reduced by means of the sub lock plate by it self. Further, because the sub lock plate can be rotated in conjunction with the rotation of the main lock plate, both the main lock plate and the sub lock plate can be rotated by applying the force to either one of the main lock plate or the sub lock plate. In such a simple configuration, the upper rail can be unlocked from the lower rail without any difficulty.
- The foregoing and additional features and characteristics of the present invention will become more apparent from the following detailed description considered with reference to the accompanying drawings, wherein:
-
Fig.1 illustrates a front view of a seat slide device; -
Fig.2 illustrates a cross section of the seat slide device illustrated inFig.1 along a II-II line seen in an arrow direction; -
Fig.3 illustrates a cross section of the seat slide device illustrated inFig.1 along a III-III line seen in an arrow direction; -
Fig.4 illustrates a cross section of the seat slide device illustrated inFig.1 along a IV-IV line seen in an arrow direction; -
Fig.5 illustrates a cross section of the seat slide device illustrated inFig.1 along a V-V line seen in an arrow direction; -
Fig.6 illustrates an oblique perspective view of a main lock plate and a sub lock plate of the seat slide device and -
Fig.7 illustrates an oblique perspective view showing another example of a main lock plate and a sub lock plate of the seat slide device. - As shown in
Fig.1 , a seat slide device 1 for a vehicle includes alower rail 2, which is fixed on the vehicle floor, and anupper rail 3, which is provided so as to be slidable on thelower rail 2. Further, the seat slide device 1 includes a lock andunlock mechanism 100 for locking (engaging) and unlocking (disengaging) theupper rail 3 to thelower rail 2. As shown inFig.2 , thelower rail 2 is comprised of amain body portion 4 andflange portions 5. - Specifically, the
main body portion 4 includesvertical wall portions 4c and afirst bottom portion 4a provided between thevertical wall portions 4c. Both end portions of thefirst bottom portion 4a are stepped so as to formsecond bottom portions 4b. Thus, themain body portion 4 is formed in approximately a U-shape in cross section. - Further, each of the
flange portions 5 is formed so as to extend inward from an upper end of each of thevertical wall portions 4c. Theflange portions 5 further extend downward in a vertical direction so as to formvertical portions 8. - On the other hand, the
upper rail 3 includes amain body portion 6 and mountingportions 7. Specifically, themain body portion 6 is formed in an upside-down U-shape so as to includes two vertical walls, and each of the vertical walls extends outward from each of the lower ends of the vertical walls, and then further extends upward so as to form theU-shaped mounting portion 7. In circumstances where theupper rail 3 is mounted to thelower rail 2, each of thevertical portions 8 of theflange portions 5 is positioned within each of themounting portions 7. - As shown in
Fig.2 , a pair ofbearings 9 is attached to the mountingportions 7 of theupper rail 3. Each of thebearings 9 is positioned so as to rotate on each of thesecond bottom portions 4b of themain body portion 4, and in this circumstance, a space is provided between a top end of each of thebearing 9 and an inner surface of each of theflange portions 5. - Further, as shown in
Fig.1 , two pairs of thebearings 9 are provided on theupper rail 3, one pair provided on the front thereof and the other pair provided on the rear thereof. As shown inFig.3 , a pair ofshoes 10 is fixed to the upper rail at themounting portions 7 so as to slide on the inner surface of theflange portion 5 and the inner surface of thevertical wall portion 4c in order to smooth the slide of theupper rail 3 on thelower rail 3. - Further, as shown in
Fig.1 ,Fig.4 and Fig.5 , on one side of themain body portion 6 of theupper rail 3, amain lock plate 11 and asub lock plate 12 are provided so as to be connected together. - Further, as shown in
Fig.6 , themain lock plate 11 includes amain body 13, a protrudingportion 21, anoperating portion 14, hookportions 15 and mountingportions 16. Specifically, theoperating portion 14 is provided at the upper portion of themain body 13, themounting portions 16 are also provided at the upper portion of themain body 13 so as to sandwich theoperating portion 14, and thehook portions 15 are provided at the lower portion of themain body 13. - On the other hand, the
sub lock plate 12 includes amain body 17, anoperating portion 18, aclaw portion 19 and mountingportions 20. Specifically, theoperating portion 18 is provided at the upper portion of themain body 17, themounting portions 20 are also provided at the upper portion of themain body 13 so as to sandwich theoperating portion 18, and theclaw portion 19 is provided at the lower portion of themain body 17. - The
main lock plate 11 and thesub lock plate 12 are connected together in a manner where the protrudingportion 21 of themain lock plate 11 overlaps themain body 17 of thesub lock plate 12. In this circumstance, when an operation force is applied to theoperating portion 14 in a downward direction inFig.6 by means of an operation handle (not shown), themain lock plate 11 rotates in an anticlockwise direction relative to a pin hole of themounting portion 16 so as to be unlocked. In conjunction with the rotation of themain lock plate 11, thesub lock plate 12 is also rotated by means of theprotruding portion 21. - Further, as shown in
Fig.4 , themain lock plate 11 is rotatably supported by theupper rail 3 in a manner where themounting portions 16 of themain lock plate 11 is attached tobrackets 23 of theupper rail 3 by means ofpins 22. Thus, thehook portion 15 is positioned so as to be able to insert into lock holes (engaging holes) 24, which are formed on thevertical portion 8 of thelower rail 2. - In addition, on the
mounting portion 7 of theupper rail 3, cutportions hook portion 15. - The
main lock plate 11 is normally biased by means of the spring 11a in an anticlockwise direction inFig.4 so that thehook portions 15 engage with thelock holes 24, and thus theupper rail 3 can be locked with thelower rail 2. - Thus, when a force (F) is applied to the operating
portion 14 of themain lock plate 11 in a downward direction by means of the operation handle, themain lock plate 11 is rotated in a clockwise direction relative to thepins 22, and then thehook portions 15 disengage from thelock hole 24. Thus, theupper rail 3 becomes slidable on thelower rail 2. - Further, as shown in
Fig.5 , the mountingportion 20 of thesub lock plate 12 is rotatably supported bymount brackets 26 of theupper rail 3 by means ofpins 25. - On the other hand, the
sub lock plate 12 is normally biased by means of aspring 12a in an anticlockwise direction so that theclaw portion 19 can insert into thelock hole 24 formed on thevertical portion 8 of thelower rail 2. - As shown in
Fig.6 , a height of themain body 13 of themain lock plate 11 is approximately identical with a height of themain body 17 of thesub lock plate 12. - Further, each of the
hook portions 15 includes avertical portion 15a and a protrudingportion 15b. - Specifically, the
vertical portion 15a extends in a downward direction from a lower end of themain body 13, and, when theupper rail 3 mounted to thelower rail 2 is locked, the protrudingportion 15b extends toward the lock holes 24 from a lower end of thevertical portion 15a. - On the other hand, the
claw portion 19 doesn't include a vertical portion, which corresponds to thevertical portion 15a of thehook portion 15, and includes a protrudingportion 19a that extends toward thelock hole 24 from a lower end of themain body 17. - Thus, in a condition where the
claw portion 19 inserts into thelock hole 24 as shown inFig.5 , the protrudingportion 19 of theclaw portion 19 contacts to the upper surface of thelock hole 24. - In circumstances where the
hook portions 15 insert into the lock holes 24 as shown inFig.4 , the protrudingportions 15b of thehook portions 15, which face the upper surface of the lock holes 24, are positioned lower than the position of the protrudingportion 19a. - Thus, as the
claw portion 19 further inserts into thelock hole 24 with contacting to the upper surface of thelock hole 24, a contacting point between theclaw portion 19 and the upper surface of thelock hole 24 raises, and a force for pressing theupper rail 3 in a downward direction becomes larger, as a result, a rattling and vibrations of thelower rail 2 against theupper rail 3 can be reduced. - Further, as shown in
Fig.7 , a width of the protrudingportion 19a of theclaw portion 19 is smaller than a width of the protrudingportion 15b of thehook portion 15. Thus, it can be prevented that the protrudingportion 19a of theclaw portion 19 contacts to thelock hole 24 in a longitudinal direction of the vehicle. - The
sub lock plate 12 can be unlocked by operating the operation handle (not shown) in order to apply the operation force (F) to the operatingportion 18, or by rotating thesub lock plate 12 against the biasing force of the spring by means of the protrudingportion 21 of themain lock plate 11, which is operated by the operation force applied by the operatingportion 14. -
Fig.7 illustrates another example of the seat slide device, in which thesub lock plate 12 includes a protruding portion 21', and themain body 13 of themain lock plate 11 overlaps the protruding portion 21'. - Further, in the example shown in
Fig.7 , themain lock plate 11 is rotatably supported bymount brackets 27, and themount brackets 27 are fixed to thebrackets 23 of theupper rail 3. - The
sub lock plate 12 is rotatably supported by amount bracket 28, and themount bracket 28 is fixed to thebracket 26 of theupper rail 26. - In this example shown in
Fig.7 , themount brackets 27 and themount bracket 28 commonly use a part of mounting bolts, which are used for mounting these brackets to thebracket 23 and thebracket 26. - Further, in this example, as the
claw portion 19 inserts into thelock hole 24, a contacting point between theclaw portion 19 and the upper surface of thelock hole 24 raises, and a force for pressing theupper rail 3 in a down ward direction becomes larger, as a result, effect to reduce a rattling or vibrations of thelower rail 2 against theupper rail 3 can be enhanced. - The
sub lock plate 12 can be rotated in an unlocked direction in conjunction with the rotation of themain lock plate 11. Specifically, when a force is applied to the operatingportion 14 of themain lock plate 11, the force is further transmitted to thesub lock plate 12 by means of the protruding portion 21'. Thus, thesub lock plate 12 can be unlocked by means of the operatingportion 14 of themain lock plate 11. - Alternatively, the seat slide device may be configured that the force is applied to both the operating
portions 14 of themain plate 11 and the operatingportion 18 of thesub plate 12. - According to the present invention, a seat slide device comprises a lower rail fixed to a vehicle floor, an upper rail supporting a seat, a lock and unlock mechanism including a main lock plate and a sub lock plate for maintaining the upper rail so as to be slidable on the lower rail, the main lock plate rotatably supported by a first bracket fixed to the upper rail, the sub lock plate rotatably supported by a second bracket fixed to the upper rail, and a claw portion formed on the sub lock plate so as to contact to an upper surface of an engaging hole of the lower rail in order to press down the upper rail.
- Preferably, the claw portion is formed in a manner where, when the claw portion is positioned so as to insert into the engaging holes, its height gradually increases from a top thereof. Further, the sub lock plate is moved so as to be unlocked in conjunction with the movement of the main lock plate so as to be unlocked.
- Furthermore, the main lock plate is biased in a first direction by means of a first spring, and the sub lock plate is also biased in the first direction by means of a second spring.
- While the main lock plate and the sub lock plate is biased by means of the spring, the claw portion of the sub lock plate is engaged with the upper portion of the engaging hole (lock hole) of the lower rail so that the sub lock plate presses the upper rail in a downward direction.
- Thus, the rattling of the upper rail against the lower rail can be reduced by means of the sub lock plate by it self. Further, because the sub lock plate can be rotated in conjunction with the rotation of the main lock plate, both the main lock plate and the sub lock plate can be rotated by applying the force to either one of the main lock plate or the sub lock plate. In such a simple configuration, the upper rail can be unlocked from the lower rail without any difficulty.
Claims (4)
- A seat slide device (1) comprising :a lower rail (2) adapted to be fixed to a vehicle floor;an upper rail (3) for supporting a seat;a plurality of spaced holes (24) formed along the lower rail (2);a lock and unlock mechanism (100) for allowing the upper rail (3) to slide on the lower rail (2),
characterized in thatthe lock and unlock mechanism (100) includes a main lock plate (11), which is rotatably supported by a first bracket (23) fixed to the upper rail (3), and a sub lock plate (12), which is rotatably supported by a second bracket (26) fixed to the upper rail (3), the main lock plate (11) having a hook portion (15) and the sub lock plate (12) having a claw portion (19),the main lock plate (11) being urged by a first spring (11a) for causing the hook portion (15) to engage with one of the holes (24),the sub lock plate (12) being urged by a second spring (12a) for causing the claw portion (19) to contact with an upper surface of an engaging hole (24) in order to press down the upper rail (3),the main lock plate (11) and the sub lock plate (12) being connected together in a manner where the main lock plate overlaps the sub lock plate (12) such that when the main lock plate (11) rotates to be unlocked, the sub lock plate (12) is also rotated. - A seat slide device (1) according to Claim 1, wherein the claw portion (19) is formed in a manner where its height gradually increases from a top thereof when the claw portion (19) is positioned so as to insert into the engaging hole (24) .
- A seat slide device (1) according to Claim 1 or Claim 2, wherein the sub lock plate (12) is moved in an unlocked direction in conjunction with the movement of the main lock plate (11) in the unlocked direction.
- A seat slide device (1) according to any one of Claim 1 through Claim 3, wherein the main lock plate (11) is biased in a first direction by means of a first spring (11a), and the sub lock plate (12) is biased in the first direction by means of a second spring (12a).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05015842T PL1621391T3 (en) | 2004-07-27 | 2005-07-21 | Seat slide device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004219055A JP4433925B2 (en) | 2004-07-27 | 2004-07-27 | Seat slide device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1621391A2 EP1621391A2 (en) | 2006-02-01 |
EP1621391A3 EP1621391A3 (en) | 2009-04-15 |
EP1621391B1 true EP1621391B1 (en) | 2010-11-03 |
Family
ID=35351632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05015842A Expired - Fee Related EP1621391B1 (en) | 2004-07-27 | 2005-07-21 | Seat slide device |
Country Status (5)
Country | Link |
---|---|
US (1) | US7431256B2 (en) |
EP (1) | EP1621391B1 (en) |
JP (1) | JP4433925B2 (en) |
DE (1) | DE602005024485D1 (en) |
PL (1) | PL1621391T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10266074B2 (en) | 2011-10-17 | 2019-04-23 | Fisher & Company, Incorporated | Seat-track assembly |
US11225173B2 (en) | 2020-02-12 | 2022-01-18 | Fisher & Company, Incorporated | Seat-track assembly |
DE102016119490B4 (en) | 2015-10-19 | 2023-11-30 | Fisher & Company, Incorporated | Seat rail assembly |
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JP4984471B2 (en) * | 2005-09-29 | 2012-07-25 | アイシン精機株式会社 | Vehicle seat slide device |
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US8215602B2 (en) * | 2008-05-23 | 2012-07-10 | Lear Corporation | Longitudinal adjustment apparatus for a vehicle seat |
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KR101206802B1 (en) | 2011-04-21 | 2012-11-30 | 주식회사 오스템 | Seat track |
KR101799773B1 (en) * | 2011-08-31 | 2017-11-22 | 주식회사 다스 | Seat rail structure for vehicle |
DE102012201584B4 (en) * | 2012-02-03 | 2021-04-01 | Lear Corporation | Seat track assembly with selectable end stop positions and method for forming a seat track assembly |
JP5908120B2 (en) * | 2012-02-06 | 2016-04-26 | ジョンソン コントロールズ テクノロジー カンパニーJohnson Controls Technology Company | Position adjustment assembly for vehicle seat |
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EP3175323A4 (en) * | 2014-07-31 | 2018-07-18 | Hewlett-Packard Development Company, L.P. | Model data of an object disposed on a movable surface |
DE102016215958A1 (en) * | 2016-04-28 | 2017-11-02 | Adient Luxembourg Holding S.à.r.l. | Longitudinal adjuster |
US11718204B2 (en) * | 2021-03-05 | 2023-08-08 | Camaco, Llc. | Anti-chuck mechanism for seat track assembly |
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DE3218214A1 (en) | 1982-05-14 | 1983-11-17 | P.A. Rentrop, Hubbert & Wagner Fahrzeugausstattungen Gmbh & Co Kg, 3060 Stadthagen | SLIDE RAIL GUIDE FOR VEHICLE SEATS |
FR2740743B1 (en) * | 1995-11-08 | 1997-12-26 | Faure Bertrand Equipements Sa | LOCKABLE SLIDE, ESPECIALLY FOR A MOTOR VEHICLE SEAT |
JPH10100752A (en) | 1996-09-30 | 1998-04-21 | Oi Seisakusho Co Ltd | Vehicular seat sliding device |
US6354553B1 (en) * | 2000-03-01 | 2002-03-12 | Dura Global Technologies, Inc. | Seat track assembly with positive lock mechanism |
-
2004
- 2004-07-27 JP JP2004219055A patent/JP4433925B2/en not_active Expired - Fee Related
-
2005
- 2005-07-21 DE DE602005024485T patent/DE602005024485D1/en active Active
- 2005-07-21 EP EP05015842A patent/EP1621391B1/en not_active Expired - Fee Related
- 2005-07-21 PL PL05015842T patent/PL1621391T3/en unknown
- 2005-07-27 US US11/190,082 patent/US7431256B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US10266074B2 (en) | 2011-10-17 | 2019-04-23 | Fisher & Company, Incorporated | Seat-track assembly |
US10500987B2 (en) | 2011-10-17 | 2019-12-10 | Fisher & Company, Incorporated | Seat-track assembly |
US10703228B2 (en) | 2011-10-17 | 2020-07-07 | Fisher & Company, Incorporated | Seat-track assembly |
DE102016119490B4 (en) | 2015-10-19 | 2023-11-30 | Fisher & Company, Incorporated | Seat rail assembly |
US11225173B2 (en) | 2020-02-12 | 2022-01-18 | Fisher & Company, Incorporated | Seat-track assembly |
Also Published As
Publication number | Publication date |
---|---|
EP1621391A3 (en) | 2009-04-15 |
JP2006036035A (en) | 2006-02-09 |
US20060022109A1 (en) | 2006-02-02 |
JP4433925B2 (en) | 2010-03-17 |
DE602005024485D1 (en) | 2010-12-16 |
EP1621391A2 (en) | 2006-02-01 |
US7431256B2 (en) | 2008-10-07 |
PL1621391T3 (en) | 2011-05-31 |
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